Method of processing waste resin of nuclear power plant

A treatment method and waste resin technology, applied in sampling devices, dosimeters, etc., can solve the problems of high treatment cost, high cost of curing agent, low containment capacity, etc., and achieve the goal of reducing treatment cost, reducing safety hazards, and reducing treatment cost Effect

Inactive Publication Date: 2018-03-13
LINGAO NUCLEAR POWER +3
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Problems solved by technology

However, the above-mentioned treatment methods have their own defects. Although the polymer solidification has a high inclusion capacity, the cost of the curing agent is high; although the cement solidification process is simple and the treatment cost is low, the inclusion capacity is low and the nuclide leaching rate is high.
Although the oxidative decomposition method has a good volume reduction effect, it has high process requirements and hi

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  • Method of processing waste resin of nuclear power plant
  • Method of processing waste resin of nuclear power plant
  • Method of processing waste resin of nuclear power plant

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Embodiment Construction

[0032] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0033] The current APG waste resin treatment method usually adopts full curing treatment, but considering that when replacing APG resin, radiation protection personnel usually perform surface dose on the discharge pipeline, monitoring window and APG waste resin flushed into the mobile resin storage tank Rate measurement, and take samples of the resin discharged into the storage tank for chemical analysis. If there is no abnormal leakage caused by the breakage of the U-shaped tube barrier of the steam generator, the probability of APG waste resin being radioactively contaminated is extremely small, so the processing Before APG waste resin, the γ nuclide activity concentration value in APG waste resin can be detected first to judge whether it exceeds the cleaning clearance level stipulated by the state. If it exceeds the standard for...

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Abstract

The invention discloses a method of processing waste resin of a nuclear power plant. The method comprises following steps: extracting a predetermined amount of APG waste resin from a randomly chosen object; measuring at least one gamma nuclide of the APG waste resin by a gamma spectrometer system and a dosage rate instrument, obtaining multiple parameters through detection; according to the parameters, carrying out calculation to obtain the activity concentration value of gamma nuclide, comparing the activity concentration value of gamma nuclide with a control release limited value; if the activity concentration value of gamma nuclide is not greater than the control release limited value, taking the APG waste resin as normal wastes; and if the activity concentration value of gamma nuclideis greater than the control release limited value, taking the e APG waste resin as radioactive wastes. The processing method has the advantages that slightly polluted APG waste resin is divided into APG waste resin that meets the control release requirements and APG waste resin that does not meet the control release requirements; the divided APG waste resin is processed individually, the processing efficiency is improved, the processing amount of radioactive wastes is reduced, the safety for the method of processing radioactive resin is improved, and the waste processing cost is reduced at thesame time.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant radioactive waste treatment, in particular to a nuclear power plant waste resin treatment method applied to a steam generator blowdown system. Background technique [0002] In the operation of nuclear power plants, the resin used in the blowdown system of steam generators (hereinafter referred to as APG) plays the role of purifying and treating process wastewater. Compared with other radioactive wastes in nuclear power plants, the amount of APG waste resin is relatively small. After the used APG waste resin is discharged from the equipment, it is generally stored in a container, and it needs to be disposed of when the storage volume reaches a certain value or the specified time , then perform batch processing in a unified manner. [0003] According to "Nuclear Science and Technology Terminology Part 8: Radioactive Waste Management" (GBT 4960.8-2008), radioactive waste refers to radioa...

Claims

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Application Information

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IPC IPC(8): G01N1/16G01T1/02
CPCG01N1/16G01T1/02
Inventor 邓才远郭喜良赵滢岳增强袁建春张志刚高超闫晓俊
Owner LINGAO NUCLEAR POWER
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